static extern void _pickImageFromGallery( ImageResultDelegate callback, IntPtr callbackPtr, IGUtils.ActionVoidCallbackDelegate cancelCallback, IntPtr cancelPtr, int source, float compressionQuality, bool allowEditing, int iPadX, int iPadY);
static extern void _pickImageFromCamera( ImageResultDelegate callback, IntPtr callbackPtr, IGUtils.ActionVoidCallbackDelegate cancelCallback, IntPtr cancelPtr, float compressionQuality, bool allowEditing, bool isRearCamera, int flashMode);